Machine for folding sheet metal.



TETEETEE MET 29, 1906.'

E. W. TALMADGE. MACHINE TUE EOLDTEG SHEET METAL.

APPLICATION FILED UNE 24. 1905.

` UNI-TED srnrns PECK, STO'W & VILCOX COMPAN Pfgrnnfr ernten.

Y, OF SOUTHINGTON, CONNECTICUT,

A CORFORATION OF CONNECTICUT.

' MACHlN FOR FOLDING SHEET METAL. i

No. 821,765. Specification of To @ZZ-ankam, t may concern:

Beit known that I, ELMER- W. TALMADGE,

. a citizen of the United States of America, re-

siding at Plantsville, in the county of Hartford and State ofConnecticut, have invented certain new and useful Improvements inMachines for Folding Sheet Metal, of which the following is aspecification.

My. invention relates particularly to machines for working metal,particularly machines in which. sheet metal is subjected to 'v rolling,folding, and similarbending operations, and particularly toV a novelform of gage against which'the stock may be fed to determine the pointati/which the Jfold or roll sha-ll occur.

In the drawings, Figiire lis a vertical section through the gage and thebed of the mai achanneld in the bed c and is` reci chine. f Fig. 2 vis aside elevation of the gage. Fig. 3 is a plan view of the gage. 1 T haveillustrated invention as applied to` an ordinary bending-machine, .suchas is used by tinners for forming locks or wire rolls in sheet-tin. v` jy The machine'is indicated in general at a. denotes in general the gage,which in the 'preferred form is m-ade separate from the-bed of themachine and is secured thereto in any- This gage rocated by the lever f,1n a manner Whlch wil be more described hereinafter, to 'advance the vgage-platel onto the table of the `folding-machine, so that the stock.,vwhich is indicated by against Vthe gage'- ig. l: The'gage propercomprises the bed-piece e, which is channeled, as at d, and in thischannel is located the platev c. The plate is mor- On the under side'ofthe bed aretwo depending. ears i, between which the L-lever j ispivoted, one end of the lever being'formed into cylindrical shape andadapted to 'lit into the mortise h in the gageeplate.

cap 7c isv secured to the bed and holds the gage-plate in place. Thegage-plate is not quite as broad asthe channel 1in order to provide room'for' a gib l, which may be ad- Letters raient. Patented May 29, 190e.

Application Ifiled June 24,1905. Serial No. 266,862.

vanc'ed by the screws 'In to take up the wear and is also pressedforward by the thumb sired position of adjustment` Thev cap 'is slotted,as at o, and one side ofthe slot is prothis slot in the cap,cooperating. with the graduations along the edge of theslottoperdetermine the size ot the fold. ln the torward end of thechannel in the bed there are in recesses u in thel bed, these pinsexerting der to keep its forward edges in contact with the table of thefoldingmiachine to prevent the stock from riding up over the gage-plate.

The channel-bed, in which the gage-plate slides, may be made integralwith the frame oic the machine but I prefer to .ma-keit separabletherefrom.

Tn operation the met al g, lying on the tolding-leaf a2, is pushed.under the bending-y plate (1/ until. it comes against the gage-plate c.handle c3 and carried over until it lies onv the beveled surface ci thebending-plate c. The dotted lines show thefioldingdeai inaboutmid-position. ,l

A levice of this character constructed -in accordance with my inventionis cheap and very quickly operated and has a decided advantage in thatthe gage-plate 4may be quickly moved from one position to another. Iclaim as my inventionl. The combination Iwith a metalavorking 2. Thecombination with a metal-working vided with graduations-p. An indicatorfr is' carried by t-he gage-plate and projec-tsjmto The ioldingeleaf a2is then raised by the screwn' in order to lock the gage in any demit ofthe accurate adjustment of the gage to located pinse, which rest on.springs t, located an upward pressure on the gage-plate in or y.

machine, of a gage comprising the channeled machine, ci a gagecomprising the channeled bed, -a gage-plate slidingly mounted thereinled position,` substantially as described and and'haVng a mortise, and alever pivotally Jfor the purposes setforth. supported on said bed havingone end pro-- jecting into said mortise, and an indicator carried bysaid gage-plate and cooperating with graduatons on the bed to determinethe amountof adjustment of the gage-plate, and means Jfor locking saidgageeplate in adjust- TO In testimony whereof I afix my signature inpresence of tWo Witnesses.

ELMER WV. TALMADGE.

/Vtnesses THOMAS F. WELCH. MARCUS H. HoLooMB.

